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| '''Normal Distribution General Example Suspension Data'''
| | #REDIRECT[[Normal_Distribution_Examples#Right_Censored_(Suspension)_Data]] |
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| Nineteen units are being reliability tested and the following is a table of their times-to-failure and suspensions.
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| {|border="1" align="center" style="border-collapse: collapse;" cellpadding="5" cellspacing="5"
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| |-
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| |colspan="3" style="text-align:center"| Non-Grouped Data Times-to-Failure with Suspensions (Right Censored)
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| |-
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| !Data point index
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| !Last Inspected
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| !State End Time
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| |-
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| |1 ||F||2
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| |-
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| |2 ||S||3
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| |-
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| |3 ||F||5
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| |-
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| |4 ||S||7
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| |-
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| |5 ||F||11
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| |-
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| |6 ||S||13
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| |-
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| |7||S||17
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| |-
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| |8||S||19
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| |-
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| |9 ||F||23
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| |-
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| |10 ||F||29
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| |-
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| |11 ||S||31
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| |-
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| |12 ||F||37
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| |-
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| |13 ||S||41
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| |-
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| |14 ||F||43
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| |-
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| |15||S||47
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| |-
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| |16||S||53
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| |-
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| |17||F||59
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| |-
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| |18||S||61
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| |-
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| |19||S||67
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| |}
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| '''Solution'''
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| This augments the previous example by adding eleven suspensions to the data set. This data set can be entered into Weibull++ by selecting the data sheet for Times to Failure and with Right Censored Data (Suspensions).
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| The parameters using maximum likelihood are:
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| ::<math>\begin{align}
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| & \widehat{\mu }= & 48.07 \\
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| & {{{\hat{\sigma }}}_{T}}= & 28.41.
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| \end{align}</math>
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| For rank regression on x:
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| ::<math>\begin{align}
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| & \widehat{\mu }= & 46.40 \\
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| & {{{\hat{\sigma }}}_{T}}= & 28.64.
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| \end{align}</math>
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| For rank regression on y:
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| ::<math>\begin{align}
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| & \widehat{\mu }= & 47.34 \\
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| & {{{\hat{\sigma }}}_{T}}= & 29.96.
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| \end{align}</math>
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